Husband prefers to "RELIEVE HIMSELF" but Unable to "finish" during sex with wife

Hi I'm a newbie to this site, actually this is my first for ANY SITES Anyways, my question is this: I just found out after 23 years of marriage that my husband is resorting to MASTURBATION which I feel is disgusting! The only reason I found out was during a recent night of 2 hours of FUN love making he commented to me that "this is a lot better than masturbating every day"! He also couldn't "finish his part of his end" after 2 hours but he blamed it on "too much Budweiser", as usual! He woke me up and "tried" again to "finish" about 2 hours later But STILL NOTHING! I didn't say anything to him about the "self sex" thing BUT BEING A GOOD WIFE I tried again the next night, actually it was 3 am, to help him to "FINISH OFF". For the THIRD TIME HE STILL WASN'T ABLE TO "BE RELIEVED".

So, now I'm feeling that he isn't able to "perform" without self stimulation technique which makes ME FEEL LIKE IM INADEQUATE, HE DOESN'T NEED ME, ETC... IM A VERY SHY AND I DON'T FEEL THAT PEOPLE SHOULD SPREAD INFO ABOUT THEIR INTIMACY ISSUES. Only Gosh knows what my husband says to his friends about "us" but I'm almost certain he wouldn't be telling his buddies that he masturbates and can't finish when doing the Normal DEED with me! Anyways, I DONT CONSIDER MYSELF A PRUDE AND I'VE TRIED AND DONE MANY SEXUAL IDEAS AND "ADVENTURES" in Our 23 years OF MARRIAGE BUT I DON'T UNDERSTAND WHY MY HUSBAND HAS TO RESORT TO "self sex" as its a HUGE TURN OFF AND AN INSULT TO MY EGO, ETC... My husband isn't a GOOD COMMUNICATOR by ANY MEANS SO ITS HARD TO "talk" to him about this very Important but necessary issue Any IDEAS